Control knob with dynamic display screen for adjusting a ventilation system in a refrigerator



FIG. 1 is a perspective view of the control knob with dynamic display screen for adjusting a ventilation system in a refrigerator in a closed position showing my new design;

FIG. 2 is a perspective view showing the control knob in a minimally opened position showing that the ventilation system has been activated thereof;

FIG. 3 is a perspective view in a more opened position thereof with a plurality of illuminated spots indicating that the ventilation system has been opened to a certain extent;

FIG. 4 is a perspective view illustrating a fully open position of the ventilation system with a multiplicity of illuminated spots on the display indicating the fully opened position thereof;

FIG. 5 is a side elevation view thereof, wherein the control knob is rotationally symmetrical and the side elevation view is identical from all sides; and,

FIG. 6 is a perspective view in a fully opened position thereof, corresponding to the position illustrated in FIG. 4.

The dashed broken line represents the environmental structure of a refrigerator and forms no part of the claimed design.

The main central area on the top of the control knob is a dynamic display screen with a dynamic display which displays a ventilation setting based on rotational position of the control knob. 

CLAIM The ornamental design for a control knob with dynamic display screen for adjusting a ventilation system in a refrigerator, as shown and described. 